package cn.yunhe.service.impl;

import cn.yunhe.dao.IUserDao;
import cn.yunhe.model.User;
import cn.yunhe.service.IUserService;
import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import org.springframework.stereotype.Service;

import javax.annotation.Resource;
import java.util.List;
import java.util.Map;

@Service("userService")
public class UserServiceImpl implements IUserService {

    @Resource
    private IUserDao userDao;

    public User selectByPrimaryKey(int userId) {
        return userDao.selectByPrimaryKey(userId);
    }

    public List<User> selectAll() {
        return userDao.selectAll();
    }

    public int addUser(User user) {
        return userDao.addUser(user);
    }

    public int delUser(User user) {
        return userDao.delUser(user);
    }

    public Integer selectByNameAndPass(User user) {
        return userDao.selectByNameAndPass(user);
    }

    public Page queryUsersByPage(int currPage, int pageSize) {
        Page page = PageHelper.startPage(currPage, pageSize);
        List<User> list = userDao.selectAll();
        return page;
    }

    public User getUser(User user) {
        return userDao.getUser(user);
    }

    public void editUser(User user) {
        userDao.editUser(user);
    }

    public Page queryLikeUsers(Map<String, Object> cond) {
        Page page = new Page();
        // 根据条件查询符合的用户列表记录总数，赋值给page的totalNum变量
        page.setTotal(userDao.getLikeUsersCount(cond));
        // 从请求参数中获取每页大小
        int pageSize = Integer.parseInt(String.valueOf(cond.get("pageSize")));
        page.setPageSize(pageSize);
        //从请求参数中获取当前页码
        int curPageNum = Integer.parseInt(String.valueOf(cond.get("pageNum")));
        page.setPageNum(curPageNum);
        //动态计算总页数(总记录数 除以 每页大小，加上  总页数 求余 每页大小，如果余数不为0，则 加 1，否则 加 0 )
        page.setPageNum((int) (page.getTotal() / pageSize + (page.getTotal() % pageSize == 0 ? 0 : 1)));
        //根据条件查询符合的用户列表记录，赋值给page的result变量
        page = PageHelper.startPage(curPageNum, pageSize);
        List list = userDao.getLikeUsers(cond);
        return page;
    }

    public IUserDao getUserDao() {
        return userDao;
    }

    public void setUserDao(IUserDao userDao) {
        this.userDao = userDao;
    }
}
